Just purchased my 2nd A4, this time an Avant. It has a Nokia In-Car Kit already installed.
Problem is, occasionally i'm getting a buzzing coming out of the speakers (particularly the drivers side front)
When it does Buzz, it actually mimmicks the variations in rpm as your driving so it sounds a bit like your driving in a computer game.
Turning the engine off and taking the key out and re starting doesn't always work.
I have an RNS-e SAT NAV system with BOSE Speakers.
Can anybody Advise ??